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  2. Comparison of executable file formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_executable...

    Digital signature String table Symbol table 64-bit Fat binaries Can contain icon; ELF: Unix-like, OpenVMS, BeOS from R4 onwards, Haiku, SerenityOS: none Yes by file Yes Yes Extension [1] Yes Yes [2] Yes Extension [3] Extension [4] PE: Windows, ReactOS, HX DOS Extender, BeOS (R3 only).EXE: Yes by file Yes Yes Yes [5] Yes Yes No Only MZ (DOS) [6 ...

  3. Digital signature - Wikipedia

    en.wikipedia.org/wiki/Digital_signature

    The first widely marketed software package to offer digital signature was Lotus Notes 1.0, released in 1989, which used the RSA algorithm. [26] Other digital signature schemes were soon developed after RSA, the earliest being Lamport signatures, [27] Merkle signatures (also known as "Merkle trees" or simply "Hash trees"), [28] and Rabin ...

  4. Gpg4win - Wikipedia

    en.wikipedia.org/wiki/Gpg4win

    The original creation of Gpg4win was initiated and funded by Germany's Federal Office for Information Security (BSI) in 2005, [3] [4] resulting in the release of Gpg4win 1.0.0 on 6 April 2006; [5] however Gpg4win and all included tools are free and open source software, and it is typically the non-proprietary option for privacy recommended [6] [7] to Windows users.

  5. Schnorr signature - Wikipedia

    en.wikipedia.org/wiki/Schnorr_signature

    The aforementioned process achieves a t-bit security level with 4t-bit signatures. For example, a 128-bit security level would require 512-bit (64-byte) signatures. The security is limited by discrete logarithm attacks on the group, which have a complexity of the square-root of the group size.

  6. DEC Alpha - Wikipedia

    en.wikipedia.org/wiki/DEC_Alpha

    In the Alpha architecture, a byte is defined as an 8-bit datum (octet), a word as a 16-bit datum, a longword as a 32-bit datum, a quadword as a 64-bit datum, and an octaword as a 128-bit datum. The Alpha architecture originally defined six data types: Quadword (64-bit) integer; Longword (32-bit) integer; IEEE T-floating-point (double precision ...

  7. .NET Framework version history - Wikipedia

    en.wikipedia.org/wiki/.NET_Framework_version_history

    A software development kit for this version was released on 29 November 2006. [44] Support ended on 12 July 2011. It is the last version to support Windows 98, Windows 2000 SP3, Windows ME and Windows Server 2003 RTM. [45] Changes in 2.0 include: Full 64-bit computing support for both the x64 and the IA-64 hardware platforms